I want to promote cpa offers via youtube.Most of the methods I found are same.People make video for one cpa offer and use fake view to rank the video.But I want to rank the video naturally.That's why I decide to make some video for one youtube video.But I donot know how much video is sufficient for one cpa offer.Can anyone suggest me about that? Any kind of suggestion are accepted.

Hay, its not good on long run to make video about 1 offer, unless you know that advertiser will run that offer for long. Anyways, its far better to go a little broad and make video for specific niche not offer. In that case when offer runs out just put link of another one in description. GL